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Check Engine Light ON! -
OBDII ERROR CODES - Trouble Codes ...WHAT NOW?
Use at your own risk - we bear no responsibility
for any injury or
damage caused by the use of this information or advice.The dreaded "Check Engine" or "Service Engine
Soon" light came on. Now what?
The car is still running? Is it serious?
Will it cost a million dollars to fix? Should I stop driving it?
First find out what codes are being stored - then decide what you should do.
(Continuing to run a vehicle with a problem can end up costing
more to fix than tending to it immediately)

Your vehicle computer system has some self-testing capabilities. When your car's
on-board "ECM" computer senses that there is a problem with some of the
components it stores the correspondent trouble code(s) in its memory and lights
up these "Check Engine" or "Service Engine Soon" lights to tell you that there
is a problem and your car needs to be looked at.
Don't panic, it might not be too bad. Also, the more you
understand, the less likely some repair shop can take advantage of you.

Below are some lists that may help folks out there. Your vehicle might vary, so
always check with your vehicles service manual before acting upon this
information.

GOT
THE CODES - NOW WHAT?So you read a set of codes from your car. Meaningless letters and numbers! What do they mean? Here's some
information - we just thought it would be useful to have them all in one
place. Don't know what EGR and ECM, etc. mean? Look Here

Remember - just because a code is set, does NOT always mean that the device
it points to is bad! Faulty wiring (wires broken, shorted or burned)
can cause the same effect and so can a bad computer box (ecm Electronic
Control Module) It is a shame, but a perfectly working car can be
brought to a halt with a "dead" engine by a simple fuse in a box
somewhere.

So what fails on cars these
days? Well, Oxygen Sensors ($30-$150) wear out and need replacing or the emissions
and economy go down the tubes - and sometimes you get ( catalyst
inefficiency errors when it's really the oxygen sensors). The EGR (Exhaust Gas Recirculation Valve) clog
up with carbon and stop working - more emission NOX problems. By sending some
of the exhaust gases back into the intake, combustion temperatures are lowered
to reduce oxides of Nitrogen NOX - Smog in other words.
Various other sensors like MAP (Manifold Applied Pressure) sensors in the intake air, TPS
(Throttle
Position) Sensors, Knock Sensors, Cam sensors - they can all go on the
fritz. EGRs are my favorite as you get to hit them with a hammer to
clean them.

First, use the charts below to find out what your DTC codes mean. Once you
have this, you can then see if others out there have run into this also.
The nature of a given machine is for all the copies of it to fail in a similar
way, so see if you can learn from their experiences.

Once you have an idea of what is giving the problem, what
can you do about it. If you repair your cars yourself, then get the parts
and get to it.
If not, you have to find a reliable mechanic service that you can trust.

The above reason is why I have always repaired my own
cars - I simply cannot trust the well meaning folks that they employ
these days.....

99-HVAC - Heater, Ventilation, Air Conditioning
B0332 Outside Air Temp Sensor Short to GND
B0333 Outside Air Temp Sensor Open
B0337 Inside Air Temp Sensor Short to GND
B0338 Inside Air Temp Sensor Open
B0348 Sunload Temperature Sensor Open
B0361 Left Actuator Feedback Short to GND
B0363 Left Actuator Feedback Open
B0365 Right Actuator Feedback Short to GND
B0367 Right Actuator Feedback Open
B0441 Left Actuator Out of Range
B0446 Right Actuator Out of Range
B1016 Loss of Communications with PCM
U1064 Loss of Communications with BCM
U1096 Loss of Communications with IPC
U1255 Serial Data Line Malfunction